5000 power bank ce,rohs, Fcc Battery type : Li polymer battery dual usb power bank 5000mah dual usb power bank ... 5000mah Battery type : Li polymer battery Size:115*76*14mmWeight:152gColour:Black , White, Red, Purple ... , Which is the 4-7mes to cell phone batteries .2.Lithium polymer battery safety, can be recharged 300 times, discharge capacity above ...